Safety razor



y 1934- G. TAYLOR ,960,684

SAFETY RAZOR Filed Aug. 19, 1952 Patented May 29, 1934 SAFETY RAZOR George Taylor, Pentwortham, Preston, England Application August 19, 1932, Serial No. 629,523 In Great Britain September 22, 1931 7 Claims. (CI. 30-12) This invention relates to safety razors having ing plate is spring-controlled so as to hold the a blade carrier mounted for reciprocation by blade in position on the carrier, which is provided means of a face roller which is rotated during wit st ady pr j cti ns w i ar adapt d t shaving, operate with recesses in the blade. In order to Heretofore, it, has been proposed to operate the limit the tilting movement 0f the carrier on its 60 blade carrier by means of a serrated face roller Single guide member, that 13 to y, mOVement at the front of the razor frame, with a cam groove W h w ld ause the carrier to come out of enactuating a pin on the carrier, which h s been gagement with the cam action associated with the mounted on two longitudinal rods set at the requiface roller, abutments y b p v d d 0 the site an le, frame of the razor by which movement in one or 65 h chief bject of t present invention i other direction is limited, or, alternatively, the to simplify the means by which the blade carrier uide ba may be f rectangular S ction, the Caris mounted on the razor frame and operated by Tier being p vi d with Corresponding y s y th face 11 which the carrier is mounted on the guide bar,

.To this end according to the invention, the a d Which p ev eXCeSsiVe tilting movement 70 blade carrier is tiltably mounted in the frame by The invention will be more clearly understood a single guide support at the rear of the frame, withreference to the accomp nyin drawing and means on the frame is provided for engaging which shows three forms of the invention. with and over the blade to determine the set of I11 the d1aWiI1g the operative edge of the blade in relation to the Fig. 1 is a full size side elevation of one form 75 face roller. With the backing plate d g the blade in posi- Reciprocation of the carrier is preferably eftion; fected by a pin on the carrier engaging in a cam Fig. 2 isa plan of Fig. 1 with the backing plate groove in the face roller and limit means is prolifted about its hinge;

vided for holding the pinin the cam groove when Fig. 3 is a side section elevation on the line the blade is removed from the carrier. III-III of the Fig. 2 drawn to double size;

Conveniently, a backing plate is employed for Fig. 4 shows another form of razor according fastening the blade on the carrier with oneedge to the invention, the view being a section shown adjacent the face roller. The backing plate may similar to that of Fig. 3, while 30 be hinged to the carrier or so disposed that it Fig. 5 is a further form of the invention, the forms a guide plate which is hinged to some porview being a section shown similar to that of tion of the frame of the razor and covers the Fig. 3. razor blade when in operative position. Like reference numerals in the drawing desig- In the case where the backing plate is hinged nate like or similar parts.

35 to the carrier the razor blade may be attached The razor comprises a handle 1, screwed to a 9 to the latter by means of a catch, which when bridge piece 2, secured to aholder frame 3includthe plate iS C s d, p j ts t rough a hole in ing side plates 3a carrying between them at one the razor blade to the underside of the carrier end a serrated face roller 8, having a cam groove and is held by means of a clasp mounted o 9 in which a pin 10 on the tiltable carrier 11 operthe carrier, which clasp is preferably pivoted to ates, the groove being such as to cause the carrier the carrier. to reciprocate when the roller is rotated;

Preferably, the means for determining the set In Figs. 1 to 3, the single guide bar for pivotof the blade in relation to the face roller is conally mounting the carrier 11 comprises a 10ngi stituted by blade guides one at each side of the tudinal rod 12 of circular cross section, mounted 45 frame adjoining the face roller, the blade enterat the rear end of the side plates of the frame 3 ing the recesses formed in these guides, so that relatively above the face roller, the carrier being upon reciprocation it is constrained to move altiltably and slidably carried on the rod 12 by ways in the same position as set by the guides. means of eyelets 13.

Alternatively, in the case where the backing In order to limit the tilting movement of the 50 plate is hinged to the frame, projections may be carrier so as to prevent the pin 10 coming out of 5 formed at the forward edge of the backing plate, engagement with the cam groove 9this tilting which, when the plate is in its operative posimovement being arocking movement-lugs 14 are tion, locates it with regard to the face roller and provided on the frame 3 near the guide bar 12 the blade and determines the set of the latter in to limit movement of the carrier in an upward relation to the face roller. In this form the backdirection, and abutments or stop pins 15 are located on the frame 3 beneath the carrier to form a support therefor, limiting its downward movement, these pins conveniently being formed by the screws which secure the bridge piece 2 to the frame 3.

The blade 16 is provided with recesses which co-operate with steady pins 17 on the carrier 11, and the blade is secured to the carrier by means of a backing plate 18, hingedly connected at 19 to the carrier and provided with a catch 20, adapted to pass through a slot 21 in the blade 16 and co-operate witha clasp 22 pivoted at 23 to the underside of the carrier. The set of the blade 16 with respect to the roller 8 is determined during reciprocation by means of blade guides 24, one at each side of the frame 3, and constituted by turned over lugs forming recesses 25, in which the blade 16 reciprocates.

It will be clear that to some extent the stops 15 will assist in determining the set of the blade, although this will be mainly accomplished by the recesses 25.

In a modified form of razor as shown in Fig. 4, the single guide bar for the carrier is constituted by a rod 26 of rectangular cross section, with which tiltably engage slots in straight eyelets 2'7, fixed to the carrier 11. This rod 26 limits the rocking movement of the carrier, which in this case, slides upon the upper surfaces of the sides of the frame 3, and within the guides 24.

In the two previously described constructions, the backing plate 18 is hinged to the carrier 11, but in the construction according to Fig. 5 the backing plate is formed as a spring-controlled member hinged to the frame 3, the sides of which are constituted by L-shaped members 28, between which the face roller 8 is mounted and which are connected by the bridge piece 2. The carrier 11 is mounted to reciprocate by means of a single rear supporting rod, constituted by projections 29 of rectangular cross section, extending from the ends of the carrier into slots formed in the upstanding portions of the L-shaped sides 28, the slots constituting the pivot support for the carrier in which the projections can tilt slightly, but the carrier may reciprocate without any appreciable rock, by the means now to be'described.

In order to provide an underneath support for the carrier, supplementary supporting or limit stops 30 may be provided which are screwed into the bridge piece 2 so as to provide for adjustment of the set of the blade-when this is mounted on the carrierwith respect to the face roller. The backing plate is constituted by a bent over plate 31, having its bent over edge hingedly connected at 32 between the sides 28, and spring-controlled by means of a lug 33 fixed to the plate 31, and co-operating with aspring 34 secured to the bridge piece 2 and pressing upon the lug 33.

This plate 31forms a guide for the razor blade, and when in its operative position as shown in Fig. 5, determines the set of the blade in relation to the face roller, by means of projections 35, one at each end of its forward edge, which bear on the sides 28 clear of the ends of the blade, but with the forward edge of the plate 31 adjacent the blade so as to ensure that it cannot rise from its position. The blade 16 is located upon the carrier by means of steady pins 1'7 and also held by means of a groove 36 formed by turning over the rear edge of the carrier as shown.

It will be seen that the blade is prevented from dropping because of the rectangular shape of the rear supporting projections 29, and also by means of the stop pins 30 on the frame. Consequently, in conjunction with the backing plate 31, a very accurate set of the blade is ensured. If desired, in this construction the blade may be further secured by means of pivoted catches secured to the sides of the carrier.

By use of this invention, an easily reciprocating movement is given to the blade, which enhances its capacity to shave cleanly, and further, the construction is simple and easy to make, and the setting of the blade is effected independently of the carrier support so that accuracy of the setting obtains over long periods with a consequent improvement in the useful life of the razor.

What I claim is:

1. In a safety razor including a holder frame, a face roller mounted at the front of the frame, and a reciprocating blade carrier operable by the face roller, the combination with the holder frame of a carrier support mounted on a single guide carrier at the rear of the said frame with a limited amount of play, a blade on the carrier, end plates to the holder having guide surfaces thereon for the front corners of the blade and guard lugs thereon to prevent lifting of the blade, a tongue on the carrier engaging the slot in the face roller, and means for fix.ng the blade on the said carrier so that the setting is governed by the surfaces of the end plates, while the play allowed in the rear guide does not affect the setting, but prevents disengagement of the tongue from its slot when the blade is removed.

2. In a safety razor including a holder frame, a face roller mounted at the front of the frame, and a reciprocating blade carrier operable by the face roller, the combination with the holder frame of a carrier support mounted on a rod extending across the rear of the said frame with a limited amount of play, a blade on the carrier, end plates to the holder having guide surfaces thereon for the front corners of the blade, and guide lugs thereon to prevent lifting of the blade, a tongue on the carrier engaging the slot in the face roller, and means for fixing the blade of the said carrier so that the setting is governed by the surfaces of the end plates while the play allowed in the rear guide does not affect the setting, but prevents disengagement of the tongue from its slot when the blade is removed.

3. In a safety razor including a holder frame, a face roller mounted at the front of the frame, and a reciprocating blade carrier operable by the face roller, the combination with the holder frame of a carrier support mounted on a single guide carrier at the rear of the said frame with a limited amount of play, abutments on the said frame above and below the carrier limiting the rocking movement of the latter, a blade on the carrier, end plates to the holder having guide surfaces thereon for the front corners of the blade, and guard lugs thereon to prevent lifting of the blade, a tongue on the carrier engaging the slot in the face roller, and means for fixing the blade of the said carrier so that the setting is governed by the surfaces of the end plates while the play allowed in the rear guide does not affect the setting, but prevents the disengagement of the tongue from its slot when the blade is removed.

4. In a safety razor including a holder frame, a face roller mounted at the front of the frame, and a reciprocating blade operable by the face roller, the combination with the holder frame of a carrier support mounted on a single guide carrier at the rear of the said frame with a limited amount of play, a blade on the carrier, end plates to the holder having guide surfaces thereon for the front corners of the blade and guard lugs thereon to prevent lifting of the blade, a tongue on the carrier engaging the slot in the face roller, a hinged cover fixing the blade on the said carrier through perforations in the blade, and means for fastening the cover to the carrier on the underneath side thereof.

5. In a safety razor including a holder frame, a face roller mounted at the front of the frame, and a reciprocating blade operable by the face roller, the combination with the holder frame of a carrier support mounted on a single guide carrier at the rear of the said frame with a limited amount of play, a blade on the carrier, end plates to the holder having guide surfaces thereon for the front corners of the blade, and guard lugs thereon to prevent lifting of the blade, a tongue on the carrier engaging in the face roller, a hinged cover fixing the blade on the said carrier through perforations in the blade, and a pivot catch engaging a clasp passing through the blade and the carrier so as to fix the cover and the blade thereon by angular movement about its pivot.

6. In a safety razor including a holder frame, a face roller mounted at the front of the frame, and a reciprocating blade operable by the face roller, the combination with the holder frame of a carrier support mounted on a single guide carrier at the rear of the said frame with a limited amount of play, a blade on the carrier, end plates to the holder having guide surfaces thereon for the front corners of the blade, and guard lugs thereon to prevent lifting thereof, a tongue on the carrier engaging in the face roller, means for fixing the blade on the said carrier so that the setting is governed by the surfaces of the end plates, and a bridge piece connecting the end frames of the holder about centrally between the face roller and the carrier guide, and a handle thereon centrally of the holder.

7. In a safety razor including a holder frame, a face roller mounted at the front of the frame, and .a reciprocating blade carrier operable by the face roller, the combination with the holder frame of a carrier support having a rectangular bar at the rear of the said frame, a blade on the carrier, end plates to the holder having guide surfaces thereon for the front corners of the blade, and guard lugs thereon to prevent lifting of the blade, a tongue on the carrier engaging in the face roller, and means for fixing the blade on the said carrier so that the setting is governed by the surfaces of the end plates, while the play allowed in the rear guide does not affect the setting, but prevents disengagement of the tongue from its slot when the blade is removed.

GEORGE TAYLOR. 

